I lived in Pacifica for a while, and totally LOVED it - especially the fog!

But Tallysmom is right about 2 things... it's hard for us to say what's perfect without knowing you, and it would be a rather long commute. However, you could drive up the hill to Daly City's BART, and get over to Oakland in about 25-30 minutes. Guess that wouldn't be so bad!
BART - Stations & Schedules, QuickPlanner Results
Pacifica really is a great town, but it all depends on what your priorities/needs are... also how much time you'd be at school vs. home, how many days a week you'd be commuting, etc. Are you willing to sacrifice x hours each week to live in the perfect town? Or would you be at school & commuting so much, you wouldn't even have time to enjoy it? Those are all things I considered before my last move, and I know it's a tough decision - good luck!